2281121 has 8 divisors (see below), whose sum is σ = 2416800. Its totient is φ = 2147040.

The previous prime is 2281109. The next prime is 2281127. The reversal of 2281121 is 1211822.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2281121 - 2⁶ = 2281057 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2281121.

It is not an unprimeable number, because it can be changed into a prime (2281127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3725 + ... + 4293.

It is an arithmetic number, because the mean of its divisors is an integer number (302100).

2^2281121 is an apocalyptic number.

It is an amenable number.

2281121 is a deficient number, since it is larger than the sum of its proper divisors (135679).

2281121 is a wasteful number, since it uses less digits than its factorization.

2281121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799.

The product of its digits is 64, while the sum is 17.

The square root of 2281121 is about 1510.3380416317. The cubic root of 2281121 is about 131.6384543160.

Adding to 2281121 its reverse (1211822), we get a palindrome (3492943).

The spelling of 2281121 in words is "two million, two hundred eighty-one thousand, one hundred twenty-one".